Abstract: A vitrector for performing a vitrectomy comprises a tubular shaft portion which is attached to a distal end of a vitrector hand piece. The shaft portion is provided with a sharply pointed needle tip portion for piercing the pars plana and sclera of the eye, and a pneumatically driven guillotine cutter is incorporated within the shaft portion of the vitrector at a location immediately adjacent to the sharply pointed needle tip portion. A source of pneumatic air is operatively connected to the proximal end of the vitrector hand piece and is pneumatically connected to the guillotine cutter so as to drive the same. In addition, an aspiration line is also operatively connected to the proximal end of the vitrector hand piece and is also fluidically connected to the region immediately adjacent to the pneumatically driven guillotine cutter so as to remove the floater particles, severed from the vitreous cavity by means of the pneumatically driven guillotine cutter, by means of aspiration.

Abstract: Systems and methods for monitoring elevations of a set of workers at a job site include reference devices for capturing barometric pressures at different installation elevations on a structure and portable barometric pressure sensors carried by the workers. An atmospheric pressure offset may be calculated using the reference barometric pressures and installation elevations. The atmospheric pressure offset may be applied to atmospheric pressure measurements captured by the barometric pressure sensors carried by the workers to determine worker elevations. The worker elevations may be converted to corresponding floors of the structure.

Abstract: A rack for supporting items defines a channel or trough to receive support bases or blocks therein. Each support base carries at least one item. One item may be a router bit. The rack and support base(s) may collectively define a router bit storage and display system that can be mounted to a support surface, such as a wall or a router table. The system enables a woodworker to safely store and easily access router bits for use in their router device when needed. The router bits are maintained spaced apart from each other when supported by the rack so as to not damage each other. The system can be modular or modularly expanded to grow with the woodworker such that when the woodworker acquires more router bits, the system can add more racks and support bases to ensure there is adequate room for the woodworker's additional router bits.

Abstract: A drive axle system that includes first and second wheel end assemblies, a support structure, and an electric motor. A support structure supports the first and second wheel end assemblies and the electric motor. The electric motor has a rotor that is rotatable about a rotor axis. The rotor axis is disposed below a wheel axis.

Abstract: An apparatus including an interface and a processor. The interface may be configured to receive area data and sensor data from a plurality of vehicle sensors. The processor may be configured to extract road characteristics for a location from the area data, predict expected sensor readings at the location for the plurality of sensors based on the road characteristics, calculate dynamic limits for the sensor data in response to the expected sensor readings and determine a plausibility of the sensor data received from the interface when the vehicle reaches the location. The sensor data may be plausible if the sensor data is within the dynamic limits. A confidence level of the sensor data may be adjusted in response to the plausibility of the sensor data.

Abstract: Methods, systems, and apparatus, including computer programs encoded on computer storage media, for training a model using parameter server shards. One of the methods includes receiving, at a parameter server shard configured to maintain values of a disjoint partition of the parameters of the model, a succession of respective requests for parameter values from each of a plurality of replicas of the model; in response to each request, downloading a current value of each requested parameter to the replica from which the request was received; receiving a succession of uploads, each upload including respective delta values for each of the parameters in the partition maintained by the shard; and updating values of the parameters in the partition maintained by the parameter server shard repeatedly based on the uploads of delta values to generate current parameter values.

Abstract: A method of making a calendered electrode for a battery cell comprises introducing a coated electrode having a first surface extending thereover. The coated electrode has a predetermined density of active materials for ion transport. The method further comprises selectively modifying the coated electrode by patterning the first surface to define a patterned electrode having a first portion and a second portion. After the step of selectively modifying, the method further comprises compressing the patterned electrode by calendering the first surface to provide the first portion having a first density of active materials and the second portion having a second density of active materials. The second density is greater than the first density to define the calendered electrode having a spatial variation of active material density.

Abstract: Systems and methods may be used to provide transcription and translation services. A method may include initializing a plurality of user devices with respective language output selections in a translation group by receiving a shared identifier from the plurality of user devices and transcribing the audio stream to transcribed text. The method may include translating the transcribed text to one or more of the respective language output selections when an original language of the transcribed text differs from the one or more of the respective language output selections. The method may include sending, a user device in the translation group, the transcribed text including translated text in a language corresponding to the respective language output selection for the user device. In an example, the method may include customizing the transcription or the translation, such as to a particular topic, location, user, or the like.

Abstract: A frame for an overhead door has a horizontal header connected to tripod legs with splice assemblies. Each tripod leg has two upright columns connected to an upright I-bar. The splice assemblies connect the upright columns to the header. Hinges pivotally mount the overhead door to the header to allow hydraulic cylinders to selectively move the overhead door between an open position and a closed position.

Abstract: Systems and methods for controlling a gasoline urea selective catalytic reductant catalyst are described. In one example, an observer is provided that corrects an estimate of an amount of NH3 that is stored in a SCR. The amount of NH3 that is stored in the SCR is a basis for generating additional NH3 or ceasing generation of NH3.

Abstract: An artificial reality system is configured to more accurately and efficiently construct a 3D virtual representation of a real-world environment from a set of 2D images. The system identifies points and/or lines within the images that define a plane along an orientation and then performs a planar sweep along a perpendicular path to identify surfaces in which the plane intersects with multiple points. Points that appear to be in the same plane are “collapsed” into a cohesive plane to conserve processing power by estimating and/or storing parameters for the cohesive plane, rather than all of the individual 3D points. In this way, the system also “averages out” random variation in the planar surface that would otherwise result from random noise in the estimation of the individual 3D points. The system may then generate a 3D map from a constrained alignment of all of the identified planes.

Abstract: A degradable, high-strength zinc composition suitable for use in producing degradable tools and components for in use in oil and gas and related application fields.

Abstract: An electronic device may include logic to provide a trust credential for linking to a permissioned network over a local network, comprising a plurality of user devices; retrieve a document in an initial status for editing, corresponding to a first state of a distributed ledger, maintained by the permissioned network; generate a first change in the document, wherein the document is in a second status; send, to the permissioned network via the local network, the first change for storage in the distributed ledger, in a second state; retrieve the document in a third status, including a second change, performed subsequently to the first change, the second change being generated by a user device, external to the electronic device, and coupled to the local network; and link to the distributed ledger to retrieve a third state of the distributed ledger, the third state comprising the first change and the second change.

Abstract: There is included a method and apparatus comprising computer code configured to cause a processor or processors to perform obtaining video data comprising data of a plurality of semantically independent source pictures, determining, among the video data, whether references are associated with any of a first access unit (AU) and a second AU according to at least one picture order count (POC) signal value included with the video data, and outputting a first quantity of the references set to the first AU and a second quantity of the references set to the second AU based on the at least one POC signal value.

Abstract: Embodiments are provided for detecting overlapping topics in a messaging system. In an example system, a plurality of trigger phrases is received, where each trigger phrase is configured to trigger a bot that receives the trigger phrase to select a corresponding topic for conversation. For each trigger phrase, a vector representation is generated. Measures of similarity are generated based at least on the vector representations, where each measure of similarity represents a degree of similarity between a respective pair of vector representations. A topic overlap is detected based on a pair of vector representations having a measure of similarity above a similarity threshold, where the topic overlap indicates two trigger phrases that are overlapping. The topic overlap is provided to an authoring tool that comprises one or more interactive elements to enable a user to change at least one of the two trigger phrases that are overlapping.

Abstract: Systems, apparatuses, and methods are described for wireless communications. Network slicing may be used to provide services for a wireless device. A network slice may be used for a wireless device based on an application function that may be located in a home public land mobile network (PLMN) or in a visited PLMN.